CIS study guide for exam 1
CIS study guide for exam 1 110
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This 3 page Study Guide was uploaded by Tiquana Bell on Tuesday February 2, 2016. The Study Guide belongs to 110 at Clarion University of Pennsylvania taught by Jeffrey Childs in Spring 2016. Since its upload, it has received 4015 views. For similar materials see Computer Intro Process in Computer Science and Engineering at Clarion University of Pennsylvania.
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Date Created: 02/02/16
CIS Study Guide for Exam 1 1. Digital data can text that have been converted into discrete digits such as 0’s and 1’s. 2. The process of converting information, such as text, numbers, photos, or music, into digital data that can be manipulated by electronic devices is called digitalization. 3. Numeric data consist of numbers that can be used in arithmetic operations. 4. The binary number system allows digital devices to represent virtually any number simply by using 0’s and 1’s. 5. ASCII requires 7 bits for each character. 6. Unicode uses 16 bits and provides code for 65,000 characters. 7. A group of eight bits is called a byte. 8. Transmission speeds are expressed in bits, whereas storage space is expressed in bytes. 9. Compressed files usually have .zip at the end of the file menu. 10.Digital audio is music, speech, and other sounds represented in binary format for use in digital devices. 11.Sampling rates refers to the number of times per second that a sound is measured during the recording process. 12.Most music for portable media players is stored in compressed audio formats 13.Digital audio is stored in a variety of file formats, including WMA, WAV, MP3. 14.Speech recognition enables people to control software with spoken commands, as well as dictate text into a word processing document. 15.Which of the following is a type of bitmap format? TIFF, RAW and PNG. 16.Today’s color display devices represent color using the RGB color model. 17.The number of colors available in a graphic is referred to as color depth. 18.Most graphics software uses a process called pixel interpolation to create new pixels by averaging the colors of nearby pixels. 19.In the context of bitmap graphics editing, what technique employs algorithms that pull pixels from one area of an image and then apply them to another area? Cloning 20.What is the term used to describe altering the pixel colors where the edges of the object and the background meet, so that the object appears to merge with the background? Alpha blending 21.Which of the following options are well suited for using vector graphics? Lineart, logos and diagrams 22.Which of the following file extensions is a vector graphic? .Svg, .Eps and .Al 23.What is another term for vector graphics software? Drawing software 24.3-D graphics are based on vectors stored as a set of instructions describing the coordinates for lines and shapes in a three-dimensional space. What do these vectors form? Wireframe 25.Which of the following is the technique for adding light and shadows to a 3-D image? Ray tracing 26.Which of the following tools would be found in 3-D graphics software? Rendering, Ray tracing and surface texture tools 27.Digital video is a core technology for which of the following? Digital television, video conferencing systems and video messages. 28.Which of the following is a factor in the quality of digital video? Frame rate, resolution, color depth and compression technique 29.The number of frames that are displayed per second is measured in FPS. 30.Today’s widescreen devices, such as laptops and smartphones, are designed for the 16:9 aspect ratio. 31.Bit rate is the number of bits that are processed during a specific unit of time, usually one second. 32.A codec is the software that compresses a video stream when a video is stored, and decompresses the file when the video is played. 33.Which of the following is a type of digital video container file? MP4, AVI and Vob 34.Which of the following is based on computer technology? Tablets , eBooks and game consoles 35.Input is data that is entered into a computer. Output is the result produced by a computer. 36.Most computers have temporary holding areas called memory 37.The primary purpose of systems software is to help the computer system monitor itself in order to function efficiently. 38.The electronic components of most digital devices are mounted on a circuit board called a system board. 39.The term system unit refers to the part of a digital device that hold the system board. 40.The most popular battery type used in today’s electronic devices in lithium ion. 41.At its time of construction, one of the fastest computers in the world is referred to as a Tianhe-2. 42.Originally called microcomputers, personal computer are designed to meet the computing needs of individuals. 43.Which of the following is an example of a computer that is small, lightweight personal computer that is designed like a clam shell? Laptop 44.Which of the following is an example of an operating system that is used by smartphones? IOS, androids and windows 45.Modern refrigerators, washing machines and other appliances are controlled by integrated circuits called microcomputers that combine sensors with processing circuitry. 46.What type of computer should you consider purchasing if you want a system that is ideal for dedicated games, serious designers, desktop publishers and video editors? Desktop 47.What type of computer should you consider purchasing if you want a portable system that is great for consuming content such as eBooks, music and videos, but not so great for creating content or multitasking? Tablet 48.A set contains a collection of instructions for actions that the circuitry in a microprocessor can perform. 49.Microprocessors can’t directly understand programming languages, so programs have to be converted to machine language that corresponds to the microprocessors instruction set. 50.In a microprocessor, the control unit fetches instructions. 51.Processors that execute one instruction at a time are considered to be serial processors. 52.RAM is a temporary holding area for data and programs. 53.Which of the following is an important consideration when evaluating storage options for digital devices? Durability, Dependability and capacity 54.Which of the following is an example of why hard disk drives are so popular? Low cost 55.Data transfer rate is the amount of data a storage device can move per second from the storage medium to the RAM. 56.Which optical storage technology stores data permanently on a disc, which cannot be subsequently added to or changed? Read-Only 57.Which of the following is a drawback of using cloud storage? Increased security risk, possible service outage and discontinuation of service.
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